<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<script src="../js/jquery-3.4.1.min.js"></script>
		<script>
			function takeaway(a,b){
				return a-b;
			}
			$(function() {
				var c=takeaway(4,9);
				alert(c);
			});
		</script>
	</head>
	<body>
	</body>
</html>
